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    THERMALLY ISOLATED MULTI-CHANNEL TRANSMITTER OPTICAL SUBASSEMBLY AND OPTICAL TRANSCEIVER MODULE INCLUDING SAME
    11.
    发明申请
    THERMALLY ISOLATED MULTI-CHANNEL TRANSMITTER OPTICAL SUBASSEMBLY AND OPTICAL TRANSCEIVER MODULE INCLUDING SAME 有权
    热分离式多通道发射器光分路器和光收发器模块

    公开(公告)号：US20140161457A1

    公开(公告)日：2014-06-12

    申请号：US13708569

    申请日：2012-12-07

    Applicant: APPLIED OPTOELECTRONICS, INC.

    Inventor： I-Lung Ho ,  Jun Zheng ,  Chong Wang

    IPC: H04B10/40

    CPC classification number: H04B10/40 ,  G02B6/2938 ,  G02B6/42 ,  G02B6/4269 ,  G02B6/4273 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

    Abstract: A thermally isolated multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. The lasers, and possibly other components, are wire bonded to a thermal isolation bar. The thermal isolation bar provides an electrical connection to external circuitry and is thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC). Thus, the thermal isolation bar electrically connects the lasers to the circuitry while preventing external heat from being conducted to the lasers from outside the TOSA. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

    Abstract translation: 在多通道光收发器中可以使用热隔离多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 激光器以及可能的其他部件被引线接合到隔热棒。 热隔离杆提供与外部电路的电连接，并且热耦合到诸如热电冷却器（TEC）的温度控制装置。 因此，热隔离条将激光器电连接到电路，同时防止外部热量从TOSA外部传导到激光器。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

    Laser subassembly having impedance-matching network integrated on laser submount and a transmitter optical subassembly (TOSA) implementing same
    13.
    发明授权
    Laser subassembly having impedance-matching network integrated on laser submount and a transmitter optical subassembly (TOSA) implementing same 有权

    公开(公告)号：US10608408B1

    公开(公告)日：2020-03-31

    申请号：US16202854

    申请日：2018-11-28

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Kai-Sheng Lin ,  Ziliang Cai ,  Chong Wang

    IPC: H01S5/042 ,  G02B6/42 ,  H01S5/40 ,  H01S5/022

    Abstract: The present disclosure is generally directed to a laser subassembly for use in a TOSA module that includes an integrated impedance matching network to enable a plurality of selectable resistance configurations to ensure the driving circuit and laser emitter of the TOSA module have matching, or substantially matching, impedances. The laser subassembly includes a substrate with a driving circuit disposed thereon. The driving circuit includes signal conductors for electrically coupling to an external transmit connecting circuit, a conductive laser mounting section, and an impedance matching network. The impedance matching network includes a plurality of resistors, with one or more of the resistors being selectively electrically coupled to the conductive laser mounting section to introduce a selected amount of impedance to minimize or otherwise reduce reflection.

    Thermally isolated multi-channel transmitter optical subassembly and optical transceiver module including same
    14.
    发明授权
    Thermally isolated multi-channel transmitter optical subassembly and optical transceiver module including same 有权
    热隔离多通道发射器光子组件和包括其的光收发模块

    公开(公告)号：US09306671B2

    公开(公告)日：2016-04-05

    申请号：US13708569

    申请日：2012-12-07

    Applicant: Applied Optoelectronics, Inc.

    Inventor： I-Lung Ho ,  Jun Zheng ,  Chong Wang

    IPC: G02B6/36 ,  H04B10/40 ,  H04B10/50 ,  H04J14/02 ,  G02B6/42 ,  G02B6/293

    CPC classification number: H04B10/40 ,  G02B6/2938 ,  G02B6/42 ,  G02B6/4269 ,  G02B6/4273 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

    Abstract: A thermally isolated multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. The lasers, and possibly other components, are wire bonded to a thermal isolation bar. The thermal isolation bar provides an electrical connection to external circuitry and is thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC). Thus, the thermal isolation bar electrically connects the lasers to the circuitry while preventing external heat from being conducted to the lasers from outside the TOSA. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

    Abstract translation: 在多通道光收发器中可以使用热隔离多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 激光器以及可能的其他部件被引线接合到隔热棒。 热隔离杆提供与外部电路的电连接，并且热耦合到诸如热电冷却器（TEC）的温度控制装置。 因此，热隔离条将激光器电连接到电路，同时防止外部热量从TOSA外部传导到激光器。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

    Techniques for attachment and alignment of optical components on a thermoelectric cooler (TEC) and an optical subassembly implementing same
    15.
    发明授权
    Techniques for attachment and alignment of optical components on a thermoelectric cooler (TEC) and an optical subassembly implementing same 有权

    公开(公告)号：US10951005B2

    公开(公告)日：2021-03-16

    申请号：US16506587

    申请日：2019-07-09

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Chong Wang ,  Kai-Sheng Lin ,  YongXuan Liang

    IPC: H01S5/024 ,  H04B10/50 ,  H01S5/022

    Abstract: In general the present disclosure is directed to a temperature control device, e.g., a TEC, that includes a top plate with at least first and second contact pads to allow for a soldering process to attach optical components to the first contact pad without causing one or more layers of the second contact pad to reflow and solidify with an uneven mounting surface. Thus, optical components such as a focus lens can be mounted to the second contact pad via, for instance, thermal epoxy. This avoids the necessity of a submount to protect the focus lens from the relatively high heat introduced during a soldering process as well as maintain the flatness of the second contact pad within tolerance so that the mounted focus lens optically aligns by virtue of its physical location/orientation with other associated optical components coupled to the first contact pad, e.g., a laser diode.

    Alignment correction for optical isolator in a coaxial transmitter optical subassembly (TOSA)
    16.
    发明授权
    Alignment correction for optical isolator in a coaxial transmitter optical subassembly (TOSA) 有权

    公开(公告)号：US10180545B2

    公开(公告)日：2019-01-15

    申请号：US15073342

    申请日：2016-03-17

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Chong Wang ,  Che-shou Yeh ,  Jianhong Luo ,  Haohui Mao ,  I-Lung Ho

    IPC: G02B6/42 ,  G02B6/32 ,  H04J14/02 ,  H04B10/40 ,  H04B10/50 ,  H04B10/079

    Abstract: A coaxial transmitter optical subassembly (TOSA) with optical isolator alignment correction may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes an optical fiber coupling receptacle extending from a laser package. The laser package may include a laser diode and a lens to focus laser light emitted from the laser diode onto an optical fiber. The laser diode and lens are aligned along a first longitudinal axis of the laser package parallel to a transmission path of the laser light. An optical isolator located in the transmission path is aligned along a second longitudinal axis of the laser package. The second longitudinal axis is coincident with a centerline of the laser package, and the first longitudinal axis is offset from the second longitudinal axis by a predetermined offset distance to compensate for light shifting characteristics of the isolator.

    Optical filter sub-assembly cartridge for use in a receiver optical subassembly (ROSA) housing
    18.
    发明授权
    Optical filter sub-assembly cartridge for use in a receiver optical subassembly (ROSA) housing 有权

    公开(公告)号：US09817196B2

    公开(公告)日：2017-11-14

    申请号：US14974492

    申请日：2015-12-18

    Applicant: Applied Optoelectronics, Inc.

    Inventor： I-Lung Ho ,  Jun Zheng ,  Chong Wang

    IPC: G02B6/42 ,  H04B10/40 ,  H04B10/60

    CPC classification number: G02B6/4215 ,  G02B6/4214 ,  G02B6/4263 ,  H04B10/40 ,  H04B10/60

    Abstract: An optical sub-assembly cartridge for use in a multi-channel receiver optical sub-assembly (ROSA) is disclosed and includes pre-aligned demultiplexing optics. The optical sub-assembly cartridge may include a plurality of sidewalls which define a cartridge body and at least partially enclose a cavity therein. A sidewall of the cartridge body may include a sidewall opening configured to allow light to enter the cavity. A first optical filter disposed opposite the sidewall opening may receive light entering the cavity and be configured to pass unassociated channel wavelengths out of the cavity while reflecting associated channel wavelengths to a mirror disposed in the cavity. The mirror may then reflect the received channel wavelengths to a second optical filter within or external to the cavity. The second optical filter may emit a narrow spectrum of channel wavelengths to a photodiode package to convert the same to a proportional electrical signal.

    TEMPERATURE CONTROLLED MULTI-CHANNEL TRANSMITTER OPTICAL SUBASSEMBLY AND OPTICAL TRANSCEIVER MODULE INCLUDING SAME
    20.
    发明申请
    TEMPERATURE CONTROLLED MULTI-CHANNEL TRANSMITTER OPTICAL SUBASSEMBLY AND OPTICAL TRANSCEIVER MODULE INCLUDING SAME 有权
    温度控制的多通道发射器光分路器和包含其中的光收发模块

    公开(公告)号：US20140241726A1

    公开(公告)日：2014-08-28

    申请号：US13774125

    申请日：2013-02-22

    Applicant: APPLIED OPTOELECTRONICS, INC.

    Inventor： I-Lung Ho ,  Chong Wang ,  Justin Lii

    IPC: H01S3/04 ,  H04B10/40

    CPC classification number: H01S3/04 ,  H01S5/02208 ,  H01S5/02415 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/12 ,  H01S5/4012 ,  H01S5/4087 ,  H04B10/2503 ,  H04B10/40 ,  H04B10/506 ,  H04B10/572

    Abstract: A temperature controlled multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The temperature controlled multi-channel TOSA generally includes an array of lasers optically coupled to an optical multiplexer, such as an arrayed waveguide grating (AWG), to combine multiple optical signals at different channel wavelengths. The lasers may be thermally tuned to the channel wavelengths by establishing a global temperature for the array of lasers and separately raising local temperatures of individual lasers in response to monitored wavelengths associated with the lasers. A temperature control device, such as a TEC cooler coupled to the laser array, may provide the global temperature and individual heaters, such as resistors adjacent respective lasers, may provide the local temperatures. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

    Abstract translation: 温度控制多通道发射机光学组件（TOSA）可用于多通道光收发器。 温度控制的多通道TOSA通常包括光学耦合到诸如阵列波导光栅（AWG）的光学多路复用器的激光器阵列，以组合在不同信道波长处的多个光信号。 激光器可以通过针对激光器阵列建立全局温度并且响应于与激光器相关联的被监视的波长单独提高各个激光器的局部温度而将激光器热调谐到通道波长。 耦合到激光器阵列的诸如TEC冷却器的温度控制装置可以提供全局温度和单独的加热器，例如与相应激光器相邻的电阻器，可以提供局部温度。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

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